Thermal evaluation of TEFC three-phase induction motors under different supply frequencies

Author

Mendes, A.M.S. ; Lopez-Fernandez, Xose M. ; Cardoso, A. J Marques

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Coimbra, Coimbra

fYear

2008

fDate

6-9 Sept. 2008

Firstpage

1

Lastpage

6

Abstract

Improvements in motor protection and design require knowledge of the thermal effects produced in a motor when it is operating under normal and abnormal conditions. This paper describes a series of experimental tests that were conducted on a 4 kW total enclosed fan cooled (TEFC) three-phase induction motor. The tests were carried out when the motor is supplied by both voltage source inverter and sinusoidal voltage source, considering the influence of the ventilation. A comprehensive picture of steady-state and transient temperatures of both stator and rotor is presented.

Keywords

induction motors; invertors; TEFC three-phase induction motors; motor protection; sinusoidal voltage source; thermal effects; thermal evaluation; total enclosed fan cooled motor; transient temperatures; voltage source inverter; Frequency; Induction motors; Inverters; Protection; Stators; Steady-state; Temperature; Testing; Ventilation; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines, 2008. ICEM 2008. 18th International Conference on

Conference_Location

Vilamoura

Print_ISBN

978-1-4244-1735-3

Electronic_ISBN

978-1-4244-1736-0

Type

conf

DOI

10.1109/ICELMACH.2008.4800075

Filename

4800075